Markup Calculator
Work out selling price, markup percentage, or cost price instantly — and see exactly how markup differs from margin. Everything is calculated in your browser; nothing is stored or sent anywhere.
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How To Use This Calculator
Pick what you know
Choose a mode above depending on which two figures you already have: cost & markup, cost & selling price, or selling price & margin.
Type in your numbers
Enter your cost, price, or percentage — results update instantly as you type, no need to press a button.
Read the breakdown
The highlighted figure is the one being solved for. Check the bar below to see exactly how much of the price is cost versus profit.
Markup vs. Margin — what's the difference?
Markup is profit as a percentage of cost: (Price − Cost) ÷ Cost. It tells you how much you added on top of what you paid.
Margin is profit as a percentage of selling price: (Price − Cost) ÷ Price. It tells you what share of every sale is actual profit. A 40% markup is only a 28.6% margin — they're never the same number except at 0%.